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A continuous method using gaseous carbon dioxide or a pressurized flow of liquefied carbon dioxide is described to reduce microbial and/or enzymatic activity in a liquid product. The carbon dioxide is combined with a pressurized flow of the liquid product, or the mixture is pressurized after the mix

A continuous method using gaseous carbon dioxide or a pressurized flow of liquefied carbon dioxide is described to reduce microbial and/or enzymatic activity in a liquid product. The carbon dioxide is combined with a pressurized flow of the liquid product, or the mixture is pressurized after the mixture is formed. The pressure and temperature in the flow regions are maintained at a level which is sufficient to keep the carbon dioxide in a continuous liquid state, but which does not freeze the liquid product. The pressurized mixture of the carbon dioxide and liquid product flows through a reaction zone for a sufficient time to reduce harmful microorganisms and/or inactivate enzymes and then enters one or more expansion stages wherein the pressure of the mixture flow is sufficiently decreased to vaporize the carbon dioxide for separation from the liquid product. If necessary, heat is applied in at least one of the expansion stages to prevent a freezing of the mixture.

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A continuous method using gaseous carbon dioxide or a pressurized flow of liquefied carbon dioxide is described to reduce microbial and/or enzymatic activity in a liquid product. The carbon dioxide is combined with a pressurized flow of the liquid product, or the mixture is pressurized after the mix

A continuous method using gaseous carbon dioxide or a pressurized flow of liquefied carbon dioxide is described to reduce microbial and/or enzymatic activity in a liquid product. The carbon dioxide is combined with a pressurized flow of the liquid product, or the mixture is pressurized after the mixture is formed. The pressure and temperature in the flow regions are maintained at a level which is sufficient to keep the carbon dioxide in a continuous liquid state, but which does not freeze the liquid product. The pressurized mixture of the carbon dioxide and liquid product flows through a reaction zone for a sufficient time to reduce harmful microorganisms and/or inactivate enzymes and then enters one or more expansion stages wherein the pressure of the mixture flow is sufficiently decreased to vaporize the carbon dioxide for separation from the liquid product. If necessary, heat is applied in at least one of the expansion stages to prevent a freezing of the mixture. r is an edible shellac and said solvent is ethanol.8. The method in accordance with claim 7, wherein said concentrated solution comprises from about 55 to about 65 wt. % of edible shellac and from about 35 to about 45 wt. % of ethanol.9. The method in accordance with claim 7, wherein the amount of supercritical carbon dioxide is sufficient to reduce the viscosity of the sprayable liquid coating composition to less than about 150 cps.10. The method in accordance with claim 1, wherein said preformed solid edible substrate provided in the form of edible tablets.11. A method of applying a sprayable liquid coating composition onto an edible preformed solid substrate, which comprises: (a) forming a concentrated solution comprising from about 45 to about 75 wt. % of an edible polymer and from about 25 to about 55 wt. %;(b) heating gaseous carbon dioxide to a subcritical temperature of from about 20° C. to about 70° C.;(c) passing the heated subcritical carbon dioxide into a spray nozzle head;(d) transferring said concentrated solution to said spray nozzle head;(e) dissolving the subcritical carbon dioxide into said concentrated solution in said spray nozzle head in an amount sufficient to reduce the viscosity of the resulting solution to form a sprayable liquid coating composition, and(f) atomizing and spraying said sprayable liquid coating composition onto an edible preformed solid substrate such that, upon evaporation of said solvent and carbon dioxide from said sprayable liquid coating composition, the edible preformed solid substrate will have been coated with a solid edible surface coating.12. The method in accordance with claim 11, wherein said edible polymer is selected from the group consisting of edible shellac, orange shellac, dewaxed shellac, bleached shellac, and dewaxed and bleached shellac.13. The method in accordance with claim 11, wherein said solvent is selected from the group consisting of ethyl alcohol and isopropyl alcohol.14. The method in accordance with claim 11, wherein said concentrated solution comprises from about 55 to about 65 wt. % of edible polymer and from about 35 to about 45 wt. % of solvent.15. The method in accordance with claim 11, wherein the amount of supercritical carbon dioxide is sufficient to reduce the viscosity of the sprayable liquid coating composition to less than about 150 cps.16. The method in accordance with claim 15, wherein the amount of supercritical carbon dioxide is sufficient to reduce the viscosity of the sprayable liquid coating composition to from about 10 to about 100 cps.17. The method in accordance with claim 11, wherein said edible polymer is an edible shellac and said solvent is ethanol.18. The method in accordance with claim 17, wherein said concentrated solution comprises from about 55 to about 65 wt. % of edible shellac and from about 35 to about 45 wt. % of ethanol.19. The method in accordance with claim 17, wherein the amount of supercritical carbon dioxide is sufficient to reduce the viscosity of the sprayable liquid coating composition to less than about 150 cps.20. The method in accordance with claim 11, wherein said edible preformed solid substrate provided in the form of edible tablets.21. The method in accordance with claim 11, further comprising adding compressed air to said sprayable liquid coating composition.22. The method in accordance with claim 11, wherein said spray nozzle head is heated.23. A method of applying a sprayable liquid coating onto an edible preformed solid substrate, which comprises: (a) forming a concentrated solution solution comprising from about 45 to about 75 wt. % of an edible polymer and from about 25 to about 55 wt. % solvent, and transferring said concentrated solution to a high pressure vessel;(b) chilling liquid carbon dioxide;(c) compressing said chilled carbon dioxide to a s upercritical pressure;(d) heating the supercritical carbon dioxide to a temperature of from about 31° C. to about 90° C.;(e) transferring the heated supercritical carbon dioxide to said high pressure vessel;(f) dissolving the heated supercritical carbon dioxide into said concentrated solution in said high pressure vessel in an amount sufficient to reduce the viscosity of the resulting solution to form a sprayable liquid coating composition, and(g) atomizing and spraying said sprayable liquid coating composition onto an edible preformed solid substrate such that, upon evaporation of said solvent and carbon dioxide from said sprayable liquid coating composition, the edible preformed solid substrate will have been coated with a solid edible surface coating.24. A method of applying a sprayable liquid coating composition onto an edible preformed solid substrate, which comprises: (a) forming a concentrated solution comprising from about 45 to about 75 wt. % of an edible polymer and from about 25 to about 55 wt. % of a solvent;(b) passing heated subcritical carbon dioxide into a spray nozzle head;(c) transferring said concentrated solution to said spray nozzle head such that the combination of said concentrated solution and said carbon dioxide forms sprayable liquid coating composition having a viscosity which is reduced relative to the viscosity of said concentrated solution, and(d) atomizing and spraying said sprayable liquid coating composition onto an edible preformed solid substrate.25. A sprayable liquid coating composition, which is formed by the following steps (a) forming a concentrated solution comprising from about 45 to about 75 wt. % of an edible polymer and from about 25 to about 55 wt. % of a solvent;(b) passing heated subcritical carbon dioxide into a spray nozzle head;(c) transferring said concentrated solution to said spray nozzle head; and(d) dissolving the subcritical carbon dioxide into said concentrated solution in said spray nozzle head in an amount sufficient to reduce the viscosity of the resulting solution to less than about 150 cps and to form a sprayable liquid coating composition. hermal fogging mist at the outlet of a cylindrical channel by injection, at the inlet of the channel, of the composition into a hot air jet projected at high speed into the cylindrical channel via the inlet, wherein the hot air jet exhibits, before injection, a temperature of between 550° and 750° C. and is driven, before injection, with a linear velocity of 160 to 400 m/s.7. Process according to claim 5, wherein the linear velocity before injection is between 200 and 280 m/s.8. Process according to claim 6, wherein the linear velocity before injection is between 200 and 280 m/s.9. Process according to claim 5, wherein the temperature of the hot air jet, before injection, is between 600° and 700° C.10. Process according to claim 6, wherein the temperature of the hot air jet, before injection, is between 600° and 700° C.11. Process according to claim 7, wherein the temperature of the hot air jet, before injection, is between 600° and 700° C.12. Process according to claim 8, wherein the temperature of the hot air jet, before injection, is between 600° and 700° C.13. Process according to claim 5, wherein the diameter of the channel is between 12 and 25 mm.14. Process according to claim 13, wherein the diameter of the channel is between 16 and 20 mm.15. Process according to claim 6, wherein the diameter of the channel is between 12 and 25 mm.16. Process according to claim 9, wherein the diameter of the channel is between 12 and 25 mm.17. Process according to claim 10, wherein the diameter of the channel is between 12 and 25 mm.18. Process according to claim 11, wherein the diameter of the channel is between 12 and 25 mm.19. Process according to claim 12, wherein the diameter of the channel is between 12 and 25 mm.20. Process according to claim 1, wherein the organic solvent is selected from the group consisting of an aliphatic alcohol, an aliphatic ketone and an alkyl ester of an aliphatic carboxylic acid.21. Process according to claim 20, wherein the solvent is ethyl alcohol or butyl acetate.22. Process according to claim 1, wherein the active principle is eugenol.23. Process according to claim 1, for the sprouting-inhibiting treatment of bulbs and tubers.24. Process according to claim 1, for bactericidal and/or fungicidal treatment.